Jack C4, Учебные материалы

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Product introduction
–general introduction
C4 series, supper high speed automatic overlock
machine ,is iterative product of JK-900E，not
only inherit the mechanical advantage of JK-
900E，but only use non-shell hall servo motor 、
integrated control box、three proofing sensor、
needle bar avoiding oil leakage technology、USB
technology and several other new
technology,voice guide，bigger sewing range，
more stable sewing performance，more beautiful
stitch，better machine appearance、novelty、
compact structure ，only need to connect with
power ,then start sewing easily。